xxdj1/user/pages/distribution/poster.vue

<template>
	<view style="background-color: #F4F6F7;padding:20rpx 0">
		<view class="hideCanvasView">
			<l-painter class="hideCanvas" ref="painter" />
		</view>
		<block v-if="src">
			<image :src="src" class="code-img" @tap="previewImage"></image>
			<view class="info_text f_c">
				<view class="" style="font-size: 28rpx;margin-bottom:20rpx;color:#2F2F2F">
					邀请3步
				</view>
				<view class="f_r_sb_c" style="font-size: 28rpx;color:#767676">
					<view class="f_r_m_c">
						1.分享海报
					</view>
					<image class="info_text_img" src="/static/coupon/btn.png" mode=""></image>
					<view class="f_r_m_c">
						2.微信扫码
					</view>
					<image class="info_text_img" src="/static/coupon/btn.png" mode=""></image>
					<view class="f_r_m_c">
						3.注册登录
					</view>
				</view>
			</view>
			<view class="btns">
				<!-- #ifdef H5 -->
				<button class="save-btn flex-center radius" :style="{background:primaryColor}"
					@tap="previewImage">长按上图保存图片</button>
				<!-- #endif -->
				<!-- #ifndef H5 -->
				<button class="save-btn flex-center radius" :style="{background:primaryColor}"
					@tap="saveImage">保存图片至相册</button>
				<!-- #endif -->
			</view>
		</block>
	</view>
</template>

<script>
	import {
		mapState,
		mapActions
	} from 'vuex';
	import siteInfo from '@/siteinfo.js';
	export default {
		components: {},
		props: {

		},
		data() {
			return {
				src: '',
				options: '',
				poster: {}
			}
		},
		computed: mapState({
			primaryColor: state => state.config.configInfo.primaryColor,
			configInfo: state => state.config.configInfo,
			userInfo: state => state.user.userInfo,
		}),
		async onLoad(options) {
			this.widget = this.$refs.canvas
			this.$util.showLoading()
			this.$util.setNavigationBarColor({
				bg: this.primaryColor
			})
			let that = this
			setTimeout(() => {
				console.log('bbbb')
				that.canvase()
			}, 1000)
		},
		methods: {
			...mapActions(['user/report']),
			async canvase() {
				let that = this
				let qr_code = await this.$api.mine.userCommQr()
				let cover = 'https://lbqnyv2.migugu.com/bianzu14.png'

				let qr_radius = '0rpx'
				// #ifdef MP-WEIXIN
				qr_radius = '145rpx'
				// #endif

				let poster = {
					css: {
						width: '710rpx',
						height: '1138rpx',
					},
					views: [{
							type: 'image',
							src: cover,
							css: {
								width: '710rpx',
								height: '1138rpx',
								top: '0rpx',
								left: '0rpx',
								position: 'absolute'
							}
						},
						{
							type: 'image',
							src: qr_code,
							css: {
								position: 'absolute',
								width: '290rpx',
								height: '290rpx',
								bottom: '70rpx',
								left: '210rpx',
								background: '#ffffff',
								borderRadius: qr_radius
							}
						}
					]
				}
				// 渲染
				this.$refs.painter.render(poster);
				// 生成图片
				this.$refs.painter.canvasToTempFilePathSync({
					fileType: "jpg",
					quality: 1,
					success: (res) => {
						that.$util.hideAll()
						this.src = res.tempFilePath
						console.log(res.tempFilePath);
					},
				});
			},
			previewImage() {
				let finalPath = this.src;
				uni.previewImage({
					current: finalPath,
					urls: [finalPath]
				})
			},
			async saveImage() {
				await this.$util.checkAuth({
					type: "writePhotosAlbum"
				});
				let filePath = this.src;
				let [err, success] = await uni.saveImageToPhotosAlbum({
					filePath
				})
				if (err) return;
				uni.showToast({
					icon: 'none',
					title: '保存成功'
				})
			}
		},

	}
</script>

<style>
	.info_text {
		width: 710rpx;
		margin-left: 20rpx;
		background-color: #fff;
		padding: 20rpx 40rpx;
		box-sizing: border-box;
	}

	.info_text_img {
		width: 20rpx;
		height: 20rpx;
	}

	.code-img {
		width: 710rpx;
		height: 1138rpx;
		margin-left: 20rpx;
	}

	.btns {
		display: flex;
		justify-content: center;
		padding: 15rpx;
		background-color: #fff;
		margin-top: 20rpx
	}

	.save-btn {
		width: 690rpx;
		height: 80rpx;
		line-height: 80rpx;
		margin: 0 auto;
	}

	.hideCanvasView {
		position: relative;
	}

	.hideCanvas {
		position: absolute;
		left: -9999rpx;
		top: -9999rpx
	}
</style>